Between 11 P. M. and 8:36 A. M.​, the water level in a swimming pool decreased by 12/35 in . Assuming that the water level decreased at a constant​ rate, how much did the water level drop each​ hour?

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.